40-50 Days. Annual. Known as peppergrass, garden cress, or curled cress, this slow bolting garden green produces plants growing up to 8 inches tall, with dark green curling leaves. This cress is a peppery addition to garden salads, sandwiches, and other dishes. Well watered and cared for, garden cress can also make an attractive groundcover among the other herbs. Packet contains about 2 grams of seed.